package add;
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
	        Scanner in = new Scanner(System.in);
	        while (in.hasNextInt()) {
	            int a = in.nextInt();
	            int b = in.nextInt();
	            if(a<1000&&b<1000)
	            System.out.println(a + b);
	            else
		        System.out.println("a<=1000");
	        }
	    }
	}
